<form [formGroup]="configForm">
  <div class="form-group row">
    <label class="col-3 col-form-label">Indent:</label>
    <div class="col-9">
      <input name="indent" type="number" class="form-control" formControlName="indent">
    </div>
  </div>
  <div class="form-group row">
    <label class="col-3 col-form-label">Encoding:</label>
    <div class="col-9">
      <input name="encoding" type="text" class="form-control" formControlName="encoding">
    </div>
  </div>
</form>
